Dew point more important than boiling point

Click For Summary
The discussion emphasizes that the dew point is a critical factor in understanding phase transitions between liquid and gas, contrasting it with the boiling point, which is a specific temperature on the vapor pressure curve. It argues that boiling is distinct from evaporation and is not achievable in equilibrium conditions. The analogy between melting/freezing and evaporation/condensation highlights the importance of the dew point in phase change discussions. The conversation points out the lack of emphasis on evaporation in early science education compared to boiling. Overall, the dew point is presented as a more fundamental concept in understanding phase transitions than the boiling point.
Khashishi
Science Advisor
Messages
2,812
Reaction score
491
I was thinking, the critical point between the liquid and gas phases is the dew point, not the boiling point, right? Melting/freezing on the solid/liquid boundary is analogous to evaporation/condensation on the liquid/gas boundary. Boiling is something totally different, and is not possible in equilibrium.

I'm not really puzzled by anything. I just think it's strange that we hear so much more about boiling than evaporation in early science classes
 
Physics news on Phys.org
Dew point is a line and boiling point is on one end of it. It stands out.
 
Strictly speaking, "boiling point" is the temperature at which vapor pressure (of a liquid) equals one atmosphere; it's just one point on the vapor pressure curve.
 
I do not have a good working knowledge of physics yet. I tried to piece this together but after researching this, I couldn’t figure out the correct laws of physics to combine to develop a formula to answer this question. Ex. 1 - A moving object impacts a static object at a constant velocity. Ex. 2 - A moving object impacts a static object at the same velocity but is accelerating at the moment of impact. Assuming the mass of the objects is the same and the velocity at the moment of impact...

Similar threads

Replies
3
Views
2K
Replies
13
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
Replies
4
Views
3K
Replies
18
Views
6K
  • · Replies 17 ·
Replies
17
Views
5K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 10 ·
Replies
10
Views
4K
Replies
1
Views
2K
  • · Replies 6 ·
Replies
6
Views
4K